NS and CSX have finally agreed to a trade in which NS will acquire CSX's 12 remaining SD80MAC locomotives. For the SD80's, NS has traded 12 SD40-2's, which includes: NS 3425, 3426, 3427, 3430, 3432, 3433, 3438, 3439, 3440, 3443, 3446, and 3447. The 12 SD40-2's have been officially retired by NS and interchanged to CSX at Chattanooga, TN. It is expected the SD80MAC's will be arriving from CSX soon. They will be numbered in the NS 7217-7228 series: http://www.nsdash9.com/rosters/7200.html